package com.qd.core.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
import org.springframework.boot.autoconfigure.task.TaskExecutionProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;

import javax.annotation.Resource;
import java.util.Optional;
import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;

/**
 * 线程池配置  定时任务，异步任务
 */
@Configuration
@EnableAsync
@EnableScheduling
@Slf4j
public class ExecutorConfig implements SchedulingConfigurer, AsyncConfigurer {
    @Resource
    private TaskExecutionProperties taskExecutionProperties;

    /**
     * 定时任务使用的线程池
     */
    @Bean(destroyMethod = "shutdown", name = "taskScheduler")
    public ThreadPoolTaskScheduler taskScheduler() {
        ThreadPoolTaskScheduler scheduler = new ThreadPoolTaskScheduler();
        scheduler.setPoolSize(10);
        scheduler.setThreadNamePrefix("task-");
        scheduler.setAwaitTerminationSeconds(600);
        scheduler.setWaitForTasksToCompleteOnShutdown(true);
        return scheduler;
    }

    /**
     * 异步任务执行线程池
     */
    @Bean(destroyMethod = "shutdown", name = "asyncExecutor")
    public ThreadPoolTaskExecutor asyncExecutor() {
        int corePoolSize = taskExecutionProperties.getPool().getCoreSize();
        int queueCapacity = taskExecutionProperties.getPool().getQueueCapacity();
        long keepAliveSeconds = taskExecutionProperties.getPool().getKeepAlive().getSeconds();
        int maxPoolSize = taskExecutionProperties.getPool().getMaxSize();
        String threadNamePrefix = Optional.ofNullable(taskExecutionProperties.getThreadNamePrefix()).orElse("auth-taskExecutor-");
        log.info("异步任务执行线程池初始化,corePoolSize: {},maxPoolSize: {},queueCapacity: {},keepAliveSeconds: {},threadNamePrefix: {}", corePoolSize, maxPoolSize, queueCapacity, keepAliveSeconds, threadNamePrefix);
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(corePoolSize);
        executor.setQueueCapacity(queueCapacity);
        executor.setKeepAliveSeconds((int) keepAliveSeconds);
        executor.setMaxPoolSize(maxPoolSize);
        executor.setThreadNamePrefix(threadNamePrefix);
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        executor.initialize();
        return executor;
    }

    @Override
    public void configureTasks(ScheduledTaskRegistrar scheduledTaskRegistrar) {
        ThreadPoolTaskScheduler taskScheduler = taskScheduler();
        scheduledTaskRegistrar.setTaskScheduler(taskScheduler);
    }

    @Override
    public Executor getAsyncExecutor() {
        return asyncExecutor();
    }

    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return (throwable, method, objects) -> log.error("异步任务执行出现异常, message {}, emthod {}, params {}", throwable, method, objects);
    }

}
